Members of several public safety unions are teaming up to offer a $50,000 reward for information leading to arrests in the Boston Marathon bombing.

The unions, including the Boston Police Patrolman's Association, the Boston Police Detectives Benevolent Society and the Boston Fire Fighters Local 718, said they hope the reward will help "bring to justice those terrorists who sought to destroy our city."

Richard Paris, the president of Local 718, said the union is also forming a Boston First Responder's Fund and will donate 100 percent of the proceeds to victims and their families.

Donations to the fund can be made through the Boston Firefighters Credit Union.